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function u(t) {

c.width=1920 // clear the canvas
for(i=0;i<9;i++)
x.fillRect(400+i*100+S(t)*300,400,50,200) // draw 50x200 rects

} // 122/140

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    u(t) is called 60 times per second.
    t: Elapsed time in seconds.
    S: Shorthand for Math.sin.
    C: Shorthand for Math.cos.
    T: Shorthand for Math.tan.
    R: Function that generates rgba-strings, usage ex.: R(255, 255, 255, 0.5)
    c: A 1920x1080 canvas.
    x: A 2D context for that canvas.

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katkip

remix of d/13587 by u/katkip

function u(t) {

T.valueOf=Math.random;if(!t)for(c=[i=99];i--;c.push([T*2e3,T*1e3,T*6]));c.map(q=>x.fillRect(q[0]+=C(q[2]+=T-.5),q[1]+=S(q[2]),1,1))

May 2 2019 10:01 AM UTC

}// 131/140

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Thx to u/prplz for golfing

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taupelink

remix of d/27992 by u/taupelink

function u(t) {

eval(unescape(escape`景爨椽㠴〻椭ⴾ㙥㌪琻砮晩汬⠩⥸⹢敧楮偡瑨⡸⹦楬汓瑹汥㵒⡩⼲ⱙ㵩┷⨳㔬椥㐸⨴ⰳ⨨琯椩⨪⸵⤩ⱸ⹡牣⡘㵩┴㠪㐵ⴴ㠬太㴴⸵ⰸ㌬樽椪㐮〲ⱪ⬳⬳⩴⤬氽㜵ⴵ〪琬砮獴牯步剥捴⡘⵬ⱙ⵬ⱬ⨽㈬氩`.replace(/u([^D].)/g,'$1%')))

Jun 21 2023 3:13 AM UTC

}// 138/140

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d/28023

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rodrigo.siqueira

remix of d/16023 by u/rodrigo.siqueira

function u(t) {

for(c.width=a=400;a--;)x.arc(99,99,(2+S(a*2+t)+a*t%500),1.61,7.8),x.globalAlpha=.3,x.fillRect(a,188+20*S(a)*C(a/5)+C(a/2)*3,5,58);x.stroke()

Nov 24 2019 8:56 PM UTC

}// 140/140

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Kraftwerk's Antenna with city skyline. 📡

u/DataMeta

📻📺📶
u/joeytwiddle

#scene #tribute

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taupelink

remix of d/14810 by u/Fime

function u(t) {

t||x.translate(960,b=540,A=[d=e=0,-b,b,b]);for(i=b;i--;)l=.5+S(i*b)/10,d+=(A[r=Math.random()*3|0]-d)*l,e+=(A[r+1]-e)*l,x.fillRect(d*2,e,1,1)

Jul 14 2019 4:41 AM UTC

}// 140/140

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Variant where the distance scale factor is 1/2 plus-or-minus a little bit. Also some code golfing

u/taupelink

I think some of the pattern details are an artifact of the way I golfed the code...of whatever the values of sin(i*540 radians) are, for integers i=0,...,539
u/Xen

sexy

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jasnh

remix of d/25211 by u/jasnh

function u(t) {

var F= b => Math.abs(((t*60)%b)*510/b-255);
x.fillStyle =R(F(91),0,F(63));
x.fillRect(F(125)*4.3,F(120)*2,F(125)*4.3,F(120)*2);

Mar 28 2022 6:16 PM UTC

}// 127/140

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Funkier animation that slightly looks 3D

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tylertoomey

function u(t) {

x.beginPath();for(i=0;i<t*5;i++){T=0.1*(t+i*100);X=(T)*C(T);Y=(T)*S(T);x.lineTo(960+X,500+Y,x.lineWidth=0.1);i>=100?t-=t*5:0}x.stroke();

Jan 10 2020 7:58 PM UTC

}// 137/140

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cycles from 5 pointed stars

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auselen

function u(t) {

p=Math.PI;
c.width|=0;
for(o=0;o<t%(p*2);o+=p/180) {
py=13*C(o)-5*C(2*o)-2*C(3*o)-C(4*o);
x.fillRect(960-S(o)**3*320,540-py*20,10,10);
}

Feb 22 2017 1:33 AM UTC

}// 136/140

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smtsjhr

function u(t) {

c.width=1920;h=540;r=.996;
s=.008*C(2*t);
x.beginPath(); 
for(i=0;i<1000;i++)
x.lineTo(960-960*r**i*S(i*s),h+h*r**i*C(i/s));
x.stroke();

Sep 4 2019 5:35 AM UTC

}// 136/140

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slalom

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geb

remix of d/12491 by u/rodrigo.siqueira

function u(t) {

t||(a=b=1)
for(i=2e3;i--;)x.fillStyle=`hsl(1,42%,${S(t*5)*50}%,42%)`,x.fillRect(960+(b-=.0004)*S(a+=1),540+b*T(a/1e2),2,2)

Feb 23 2019 5:01 PM UTC

}// 122/140

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into tangent

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rishabhsinghal1987

remix of d/6219 by u/hemant19

function u(t) {

c.width=1920;
for(j=0;j<4;j++)for(i=0;i<10;i++)
x.fillRect(950+S(t+j-i)*400,550+S(t+i)*400,20,50*S(i-t*2))

Jan 23 2018 1:17 PM UTC

}// 106/140

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